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| author | Len Brown <len.brown@intel.com> | 2011-01-07 01:46:40 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-01-07 01:04:19 -0500 |
| commit | 6d5bbf00d251cc73223a71422d69e069dc2e0b8d (patch) | |
| tree | 78088b56bbc95caff8cfa574941710e0c065b596 /drivers/acpi/sleep.c | |
| parent | ca9b600be38c73b7d25acfb8b7e4e9a9e941d881 (diff) | |
| download | linux-6d5bbf00d251cc73223a71422d69e069dc2e0b8d.tar.gz linux-6d5bbf00d251cc73223a71422d69e069dc2e0b8d.tar.bz2 linux-6d5bbf00d251cc73223a71422d69e069dc2e0b8d.zip | |
ACPI: Use ioremap_cache()
Although the temporary boot-time ACPI table mappings
were set up with CPU caching enabled, the permanent table
mappings and AML run-time region memory accesses were
set up with ioremap(), which on x86 is a synonym for
ioremap_nocache().
Changing this to ioremap_cache() improves performance as
seen when accessing the tables via acpidump,
or /sys/firmware/acpi/tables. It should also improve
AML run-time performance.
No change on ia64.
Reported-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'drivers/acpi/sleep.c')
0 files changed, 0 insertions, 0 deletions